Abstract
To evaluate agronomical characteristics and yield of dragon head by using different levels of nitrogen and microelements (Fe, B, Zn), a factorial experiment based on randomized complete block design with three replications was conducted in Khoy, during 2016 and 2017 growing seasons. The first factor consisted of three levels of recommended nitrogen fertilization (1- before planting, 2- one half before planting+15 days after planting, 3- one third before planting+ one-third one month after planting+ one-third 45 days after planting) and the second factor was the use of microelements with five levels including non-consuming treatments, iron with boron, iron with zinc boron, zinc. Nitrogen consumption resulted in significant effect on stem diameter, 100 seed weight, fresh weight of plant and essential oil yield. According to the results, growth and yield increase were observed using fertilizers. Therefore, the highest plant height was in two stages, the fresh yield of 10805.80 kg.ha-1, in three stages, essential oil percentage of 0.59% and essential oil yield of 16.33 kg.ha-1 in nitrogen application in two stages and iron, boron and was observed. Although the second treatment of nitrogen (half before planting and half after sowing) along with that of boron and zinc micronutrients, the highest percentage of essential oil was 0.59%, but the consumption of other micronutrients also increased the essential oil content. Meanwhile, the highest fresh yield of nitrogen in nitrogen application was obtained at 10805.7 kg.ha-1 during three stages. It can be concluded that in growing dragonhead, nitrogen should be used in several stages and micronutrients usage also improves the quality and quantity of plant yield.
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Claims 10
Claim · model-written summary
Nitrogen consumption had a significant effect on stem diameter, 100 seed weight and fresh plant weight.
- Taxon
- Dracocephalum moldavica
Dracocephalum moldavicat0 - Treatment
- Nitrogen consumptione1
- Outcome
- stem diameter, 100 seed weight, fresh weight of plante1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e1“Nitrogen consumption resulted in significant effect on stem diameter, 100 seed weight, fresh weight of plant and essential oil yield”
Claim · model-written summary
Nitrogen consumption had a significant effect on essential oil yield.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- Nitrogen consumptione1
- Outcome
- essential oil yielde1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e1“Nitrogen consumption resulted in significant effect on stem diameter, 100 seed weight, fresh weight of plant and essential oil yield”
Claim · model-written summary
Plant height was highest when nitrogen was applied in two stages.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- two stagese2
- Outcome
- plant heighte2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e2“the highest plant height was in two stages”
Claim · model-written summary
Fresh yield was highest, at 10805.7 kg/ha, when nitrogen was applied during three stages.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- nitrogen applicatione3
- Outcome
- fresh yielde3
- Direction
- higheste3
- Value
- 10805.7 kg.ha-1e3
- Qualifier
- during three stagese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e3“the highest fresh yield of nitrogen in nitrogen application was obtained at 10805.7 kg.ha-1 during three stages”
Claim · model-written summary
Essential oil percentage was highest, at 0.59%, with the second nitrogen treatment combined with boron and zinc.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- second treatment of nitrogen (half before planting and half after sowing)e4
- Outcome
- percentage of essential oile4
- Direction
- higheste4
- Value
- 0.59%e4
- Qualifier
- along with that of boron and zinc micronutrientse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e4“Although the second treatment of nitrogen (half before planting and half after sowing) along with that of boron and zinc micronutrients, the highest percentage of essential oil was 0.59%”
Claim · model-written summary
Essential oil yield reached 16.33 kg/ha with nitrogen applied in two stages together with iron and boron.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- nitrogen application in two stagese5
- Outcome
- essential oil yielde5
- Direction
- higherinferrede5
- Value
- 16.33 kg.ha-1e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e5“essential oil yield of 16.33 kg.ha-1 in nitrogen application in two stages and iron, boron and was observed”
Claim · model-written summary
Nitrogen should be used in several stages when growing dragonhead.
Verbatim
e6“It can be concluded that in growing dragonhead, nitrogen should be used in several stages and micronutrients usage also improves the quality and quantity of plant yield”
Claim · model-written summary
Micronutrient usage improves the quality and quantity of dragon head yield.
- Taxon
- dragonheade6
- Treatment
- micronutrients usagee6
- Outcome
- quality and quantity of plant yielde6
- Direction
- improvese6
Not reportedComparator
Verbatim
e6“It can be concluded that in growing dragonhead, nitrogen should be used in several stages and micronutrients usage also improves the quality and quantity of plant yield”
Claim · model-written summary
Consumption of other micronutrients increased the essential oil content.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- other micronutrientse7
- Outcome
- essential oil contente7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e7“the consumption of other micronutrients also increased the essential oil content”
Claim · model-written summary
Growth and yield increased with fertilizer use.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicat0
- Treatment
- fertilizerse1
- Outcome
- growth and yielde1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Dragon Head (Dracocephalum moldavica L.)”
e1“growth and yield increase were observed using fertilizers”
The same questions in other papers
nitrogen · quality: oil · Dracocephalum moldavicaResults agree
1 paper in the same direction as this paper
- positive
nitrogen · yield · Dracocephalum moldavicaResults agree
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- positive
- positive
fertilization · yield · Dracocephalum moldavicaResults agree
9 papers in the same direction as this paper
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.